Q: What are the prime factors of the number 144,472,200?

 A: 2, 3, 5, 19, 23, 29

Why are those the prime factors of the number 144,472,200?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 144,472,200

144,472,200
Factor Arrows
272,236,100
Factor Arrows
236,118,050
Factor Arrows
218,059,025
Factor Arrows
36,019,675
Factor Arrows
51,203,935
Factor Arrows
5240,787
Factor Arrows
1912,673
Factor Arrows
19667
Factor Arrows
2329

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 19, 23, 29

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 5 x 19 x 19 x 23 x 29 = 144,472,200

This can also be written as 23 x 31 x 52 x 192 x 231 x 291 = 144,472,200

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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